/*$$
 * Copyright (c) 1999, Trustees of the University of Chicago
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with 
 * or without modification, are permitted provided that the following 
 * conditions are met:
 *
 *	 Redistributions of source code must retain the above copyright notice,
 *	 this list of conditions and the following disclaimer.
 *
 *	 Redistributions in binary form must reproduce the above copyright notice,
 *	 this list of conditions and the following disclaimer in the documentation
 *	 and/or other materials provided with the distribution.
 *
 * Neither the name of the University of Chicago nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE TRUSTEES OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *$$*/
package uchicago.src.codegen;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.StringReader;

public class BodyGenerator implements CodeGenerator {

  private String body;

  public BodyGenerator(String body) {
    this.body = body;
  }

  public void add(String addition) {
    body += addition;
  }

  public void add(String name, Object object) {
    if (name.equals("BODY_TEXT")) {
      this.body = (String)object;
    }
  }
  
  private StringBuffer indent(StringBuffer b, int ident) {
    for (int i = 0; i < ident; i++) {
      b.append(I_SPACES);
    }

    return b;
  }

  public String generate(int ident) {
    if (body == null || body.length() == 0) {
      return "";
    } else {
      
      ident++;
      BufferedReader r = new BufferedReader(new StringReader(body));
      StringBuffer b = new StringBuffer();
      try {
        String line;
        while ((line = r.readLine()) != null) {
          String s = line.trim();
          if (s.length() > 0) {
            if (s.startsWith("}")) ident--;
            b = indent(b, ident);
            b.append(s);
            b.append("\n");
            if (s.endsWith("{")) ident++;
          }
        }
      } catch (IOException ex) {
        ex.printStackTrace();
      }

      return b.toString();
    }
  }
}
